This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 8 |
| 7 | 16 |
| 8 | 32 |
| 9 | 64 |
| 10 | 128 |
| 11 | 256 |
| 12 | 512 |
| 13 | 1023 |
| 14 | 2045 |
| 15 | 4089 |
| 16 | 8176 |
| 17 | 16348 |
| 18 | 32688 |
| 19 | 65360 |
| 20 | 130688 |
| 21 | 261312 |
| 22 | 522496 |
| 23 | 1044736 |
| 24 | 2088960 |
| 25 | 4176896 |
| 26 | 8351746 |
| 27 | 16699401 |
| 28 | 33390622 |
| 29 | 66764888 |
| 30 | 133497072 |
| 31 | 266928752 |
| 32 | 533726752 |
| 33 | 1067192064 |
| 34 | 2133861376 |
| 35 | 4266677504 |
| 36 | 8531265024 |